CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.
Talanta. 2018 Aug 1;185:335-343. doi: 10.1016/j.talanta.2018.03.097. Epub 2018 Mar 30.
A novel reduced graphene oxide supported nickel cobaltate nanorods composite (RGO-NiCoO) was prepared by a simple ionothermal method in deep eutectic solvents for the first time. Electrochemical results demonstrated that the obtained nanocomposite modified glassy carbon electrode exhibited excellent electrocatalytic performance towards the oxidation of glucose with a wide double-linear range from 1 μM to 25 mM and a low detection limit of 0.35 μM (S/N = 3). NiCoO nanorods with many small interconnected nanoparticles provided many electrocatalytic active sites, while RGO with large surface area offered good electrical conductivity. The synergistic effect between NiCoO nanorods and RGO contributed to the enhanced sensing ability of the hybrid nanostructure. This sensitive glucose sensor can be also used for the practical detection of glucose in human serum.
一种新型的还原氧化石墨烯负载的镍钴酸盐纳米棒复合材料（RGO-NiCoO）首次通过简单的离子热法在深共熔溶剂中制备。电化学结果表明，所得纳米复合材料修饰的玻碳电极对葡萄糖的氧化具有优异的电催化性能，具有从 1μM 到 25mM 的宽双线性范围和低至 0.35μM（S/N=3）的检测限。具有许多小互连纳米颗粒的 NiCoO 纳米棒提供了许多电催化活性位点，而具有大表面积的 RGO 提供了良好的导电性。NiCoO 纳米棒和 RGO 之间的协同作用有助于增强混合纳米结构的传感能力。这种灵敏的葡萄糖传感器还可用于人血清中葡萄糖的实际检测。
